Actress Elizabeth Olsen has been confirmed to play the Scarlet Witch in The Avengers: Age Of Ultron.

The Silent House star has been linked to the role for months and now Samuel L. Jackson, who plays Nick Fury in the Marvel franchise, has told The Wall Street Journal that Mary-Kate and Ashley Olsen's sister will be on-set when the sequel starts shooting next year (14).

He tells the publication, "I know we're shooting in London, that James Spader is Ultron and going to be the bad guy, and that we added Ms. (Elizabeth) Olsen, but I don't know what she's doing, if she's on the inside or the outside. I haven't seen a script."

The film is set for release in 2015 and also features returning Avengers castmates Robert Downey, Jr., Scarlett Johansson, Chris Hemsworth, Mark Ruffalo and Jeremy Renner.